Versions (3)
Version DetailsCurrent
Rev: 1 • Nov 1, 2022, 12:00 PMET INFO Observed Dynamic DNS Service Domain in TLS SNI (duia .ro)
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed Dynamic DNS Service Domain in TLS SNI (duia .ro)"; flow:established,to_server; tls.sni; dotprefix; content:".duia.ro"; endswith; fast_pattern; classtype:misc-activity; sid:2039615; rev:1; metadata:affected_product Any, attack_target Client_and_Server, created_at 2022_11_01, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_11_01;)
Nov 1, 2022, 12:00 PM
Nov 1, 2022, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 28, 2025, 9:34 PM
rules/emerging-info.rules